hifi engine

Philips CD 472 also I understand branded as Magnavox CDB-472

I have had no success at finding a user manual for this m/c which is used by our music society.

We have an intermittent problem with operating the CD especially with the loading draw unexpectedly closing.

I wonder if this might be a function of the m/c's memory which has not cleared properly?

Any help will be gratefully recieved.